Music-leaf turner



4 Sheets-Sheet 1.

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vmum ATTORNEYS .fllfllllilll I Patented June 28, 1892.

E. VON TRAUTVETTER. MUSIC LEAP TURNER.

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(No Model.)

WITNESSES.

(N0 Model.) Sheets--Sheet 2.

4 E. VON TRAUTVETTER. MUSIC LEAP TURNER.

No. 477,828. Patented June 28, 1892.

ATTORNEKS (No Model.) 4 Sheets-Sheet 3.

E. VON TRAUTVETTER.

MUSIC LEAP TURNER.

Patented June 28, 1892.

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(No Model.) 4 Sheets-Sheet 4.

E. VON TRAUTVETTER. MUSIG LEAF TURNER.

No. 477,828. Patented June 28, 1892.

-vaf WITNESSES: g INVENTOR v 77411;. W (m By YMfim Jam/7 ATTORNEYS UNITED STATES PATENT OFFICE.

ERWVIN VON TRAUTVETTER, OF BROOKLYN, NEYV YORK.

MUSIC-LEAF TURNER.

SPECIFICATION forming part of Letters Patent No. 477,828, dated June 28, 1892. Application filed October 21, 1891. Serial No. 409,403. (No model.)

To all whom it may concern:

Be it known that I, ERWIN VON TRAUTVET- TER, a resident of Brooklyn, Kings county, New York, have invented an Improvement in Music-Leaf Turners, of which the following is a specification.

My invention relates to certain improve ments in music-leaf turners; and it consists in certain mechanism whereby a leaf of music may first be curled and separated from its fellows and then turned to the opposite side of the book or pamphlet, and of further mechanism whereby one or more of the leaves already turned may be returned to theoriginal or initial position. The invention therefore accomplishes three objects, to wit: first, the curling or separation of the leaf from the layer of leaves behindit; second, the turning of said leaf to the other side of the pamphlet, and, third, the returning to the original or initial position of the turned leaves.

The improvement consists, further, in the novel arrangement and combination of parts hereinafter more fully described and claimed.

In the drawings, Figure 1 represents a front view of the device with the curling-arm in section; Fig. 2, a plan view of the same with the curling-arm in its lowermost position; Fig. 3, an enlarged plan View of the mechanism for actuating the curling-arm; Fig. 4,a cross-section on the line at 4, Fig. 2; Fig. 5, a cross-section on the line 5 5, Fig.3; Fig. 6, an enlarged plan view of the leaf-turning mechanism; Fig. 7, a horizontal section on the line 7 7, Fig. 6, with the turning-arm in its horizontal or initial position. Fig. 8 is a similar View of the turning mechanism with the turning-arm in an upright or vertical position. Figs. 9 to 13 are detail views of certain portions of the mechanism for curling and turning the leaf, in which Fig. 9 is a cross-section on the line 9 9, Fig. 2; Fig. 10, a longitudinal section on the line 10 10, Fig. 12; Fig. 11, an under side view of the operating-cylinder and its spring-cam; Fig. 12, a cross-section 0n the line 12 12, Fig. 10; Fig. 13, a side view of one of the claws shown in Fig. 9 for 0perating the turning mechanism. Figs. 1 and 6 are diagrams hereinafter referred to.

A represents the base or supporting frame of the mechanism.

13 B are suitable clamps for attaching the frame A to the lodge of the music rack or holder.

C is a slide working in a suitable slot in the frame A and actuated by a cord A, passing over a pulley A and attached to a pedal; but the slide 0 may be moved otherwise than bya pedal in one direction. A spring 9 moves it back to its normal position, being the position to the extreme right, as in Figs. 1 and 2. The slide 0 has a pin or other projection a on its upper surface near the right-hand end, which pin is adapted to set in motion the leafcurling mechanism, as hereinafter described.

D is a drum or barrel mounted or hung horizontally on a shaft 0, which hangs in bearings b b, that project from the frame A.

E is the curling-shaft attached to said barrel D, as hereinafter more fully described. This shaft E is susceptible of two rotary motions-one upon its own axis and the other around the shaft 0 of the drum or barrel D. The upper or outer end of the curling-shaft E is provided with an enlargement or head E, preferably of rubber or of any similar substance having frictional contact for the leaf to be curled. The barrel D is composed of an outer semi-cylindrical shell (Z and an inner cylinder 6, both rigidly attached to the shaft 0. Upon the periphery of the outer shell (Z on its normally-lower side a cam f is placed, havinga movable spring-arm f. The curling-shaft E is swiveled in the inner cylinder e and can be rotated therein on its own axis, being connected to a spring h, which tends to hold the shaft E normally in such position that an arm h, projecting, from it, will extend normally upward, as in Fig. 4. Upon the shaft 0, to the left of the cylinder 6, a ratchet g is placed, into the teeth of which enters a pawl 9 pivoted to the frame A.

The operation of this curling mechanism is as follows: The initial position of the curling-shaft is shown in Fig. 4, in which it is in a substantially horizontal position. In this position it is held by a spring 1' around shaft 0, which presses a lug j on drum D against a cushion or spring K on one of the bearings b. The spring i tends to so turn the shaft 0 and the parts it carries that normally the shaft E is about horizontal, projecting forward, as in Figs. 2 and 4. When now the pedal is depressed and the slide C drawn to the left, its pin a reaches the oblique edge of the cam ff on the under surface of the shell (Z, as by arrow 1 in Fig. 11. The pro jection Ct is then moved along the inner side of said cam f f, thereby rotating the barrel D and raising the shaft E until it assumes a substantially vertical position and against the leaf to be turned, as shown in Fig. 5. The

ratchet g and its pawl g serve to retain the drum D in this position against the effort of the spring 7. The slide 0, continuing to ad Vance, a post Z, carried by it, comes in contact with the arm h on the shaft E, thereby rotating said shaft E upon its axis, and thus curling theleaf to be turned. The slide C, contin uing to advance, passes its said post Z under and raises the pawl 9 allowing the drum D and its shaft E to return to the normal position'i.e.,bring the lugj against the cushion K. Of course the curling oftheleaf is followed by the action of the leaf-turning arm before the post Z reaches the pawl g lVhen the pedal is released,the spring g draws the slide Oback to the right, the point f of the cam f, being spring-pivoted to allow the pin a to pass back in the direction of the arrow 2, Fig. 11, without injuring the parts or moving the drum. Right here I will state that the music to be turned is rested against springs F F, Figs. 1 and 5, so that the curling-shaft, when thrown against the music and while turned in contact therewith, meets a yielding resistance. The leaf-turning arm G is hung on a vertical post 771-, which projects from the frame A. Around this post the arm G vibrates, so that it will turn a leaf over from right to left and then return into position for turning another leaf. The arm G is jointed, its outer member n being connected to its inner member 0 by a horizontal pivot p, on which the outer member is free to turn upward, as in Fig. 8. To produce these movements, I employ a slide H, Fig. 7, which carries a pin 5 into a slot of the slide 0, all arranged so that the slide H will begin to move to the left after the shaft E has been elevated and turned on its axis, but before the pawl g is lifted. This movement of the slide H carries an arm or pusher t thereon against a claw u on pivot 19, as shown in Fig. 7, the continued movement of the slide H resulting in raising the member 91, as in Fig. 8, said member, as well as the claw a, being fixed to the pin 1). It will be seen from Figs. 7 and 8 that the arm or pusher t enters between two claws on pivot 19, one being the claw to, which raises, and the other a reversed claw e, which lowers, the member a. The member at when raised enters the loop in the paper which was created by the curlinghcad E and is in this upright position locked to the inner member 0 by an arm to, pivoted on pin m and having locking-pin ac-that is to say, the arm 10 is by a spring y, connecting with member 0, pressed against said member 0 until the pin or enters to the right of the raised member a, which is preferably notched for the purpose. The raised arm nis now readyto turn the leaf into the loop of and behind which it has entered. This turning is accomplished by a rack 2 on the slide H, engaging a pinion a on pivot m, said pinion being rigidly connected with the arm to and member 0. The pinion receiving half a revolution, the leaf is turned. The spring when returning the slide 0 to the right, also returns the slide H to its normal position to the right, and thereby also restores the arm G to its normal position, first returning it by means of the rack and pinion as an elbow to the right, and then by the pusher t and claw o lowering the member 72. It remains in this connection to show that the pin 50 is during the act of raising and lowering of the member 92 held out of the way of said member by a pendent pin 11 which is carried by an arm or bracket of the slide II, becoming inserted at the proper time between the spring-pressed arm wand the member o and crowding w outward sufficiently far as to carry the pin 00 out of the path of the ascending and descending member a.

Similar mechanism to that described above is employed for returning one or more leaves to the original or initial position, said mechanism operating, however, in a direction opposite to that of the turning mechanism. The parts corresponding and operating substantially the same as the similar parts of the turning mechanism being the arm G corresponding to arm G 5 n and 0 members thereof, corresponding to members a and o of the arm G; 19 the pivot, corresponding to pivot p; a and n raising and lowering claws, corresponding to raising and lowering claws u and r; 10 locking-arm, and a pin thereon, corresponding to locking-arm w and pin m; spring between member 0 and locking-arm 20 corresponding to spring y; slide H with pusher t and pendent pin b and rack 2 corresponding to slide H, pusher t, pin b and rack 2, said rack 2 engaging a pinion a, which is carried by the vertical pivot m, and is rigidly connected with the arm 10 and member 0 Motion is imparted to the slide H by an outer slide 0 which can be moved inwardly by a cord A passing over a pulley A and outwardly by a spring The slide C carries a pivoted pusher .9 whose outer beveled end in the normal position-that is, under the influence of the spring g --is depressed under a stationary'loop or abutment 2, while its inner end stan'ds'on or over the outer part of the slide H as in Fig. 2. Then now the slide 0 is drawn inward by means of the cord A the pusher s first strikes a lug 3 on the slide H and moves said slide H inward a certain distance-to wit, until a double-armed pawl i on H engages a fixed shoulder 5 on the frame The motion thus far imparted to the slide H suffices to raise the member 71*, but is not sufficient to engage the rack e and pinion a Hence the motion of the slide H thus far described, enables the player to raise the member a against the face of those sheets of music that are not to be turned backward that is, to the right, and to leave it for any suitable time behindthose sheets of music which finally are to be turned back to the right for repeating or otherpurposes. When now the player desires to finally turn these last-mentioned leaves over to the right, he once more pulls the cord A moves the slide 0 inward, which causes the inner end of the pivoted pusher s that now no longer rests on the slide H to drop behind the end of said slide, (see diagram Fig. 1 and push it along, so as to cause the rack and pinion to engage and the music to be turned over. After this the slide 0 is automatically returned to its normal position by the spring 9 and the slide H by a spring 6. It remains to state that the double-armed pawl 4 has its long arm in the normal position to bear against a stationary pin 7, and that after it has engaged the shoulder 5 and after the second motion of the slide H has been started its long arm strikes another stationary pin 8, which tilts it (see diagram Fig. 6) against its spring 9, so that it may finally, under the influence of spring 6, allow the slide H to return to its normal position.

Having now described my invention, What I claim, and desire to secure byLetters Patent, 1s

1. The combination of the slide C with the rotary drum D, means for turning the same, substantially as described, shaft E, having curling-head E swiveled in said drum, and means for turning said shaft on its own axis when elevated, substantially as specified.

2, The drum D, having camf and movable cam-section f, combined with the slide (1, having pin CL and post Z, and with the ratchet g and pawl 9 spring 1', stop j K, and swiveled shaft E, having arm h and head E, all arranged substantially as herein shown and described.

3. The combination of the swiveled shaft E, having elastic head E, with means, substantially as described, for raising, turning, and lowering it, and with the spring F, against which sheets to be curled are pressed by said head E when raised, as specified.

at. The combination of the jointed arm G, which is composed of two members 0 and n, with mechanism, substantially as described, for revolving both members around their vertical pivot on and for turning the outer member n on its horizontal pivot 1 as specified.

5. The combination of the slide H and its pusher t, pin b and rack 2 with the jointed arm G, pinion a spring-pressed locking arm w, pivot 13, and claws t1, and 'v, substantially as herein shown and described.

6. The combination of the slide 0 and its spring-pressed pivoted pusher s with the loop 2, slide H pawl 4 on said slide H stationary pins 7 and 8, and jointed leaf-turning arm G and mechanism, substantially as described, for transmitting motion to said arm G from slide H all as specified.

ERWIN VON TRA'UTVETTER.

\Vitncsses:

HARRY M. TURK, MAURICE BLocK. 

